Question 1

If you traveled at a velocity of 60 mph for a five-hour trip, how far did you travel?

Accepted Answer

A)  300 miles 
B)  120 miles 
C)  12 miles 
D)  0.4 miles 
E)  240 mph 
A)  300 miles 
B)  120 miles 
C)  12 miles 
D)  0.4 miles 
E)  240 mph

Question 2

Explain how a rocket can accelerate in space, even though there is nothing to "push off" of.

Accepted Answer

According to Newton's third law,forces c

Question 3

If the synodic period of Mars is observed from Earth to be 2.1 years, what is the sidereal period of Mars?

Accepted Answer

A)  5.3 years 
B)  0.47 years 
C)  1.9 years 
D)  3.4 years 
E)  0.69 years 
A)  5.3 years 
B)  0.47 years 
C)  1.9 years 
D)  3.4 years 
E)  0.69 years

Question 4

If Venus is at inferior conjunction, what phase would we observe from Earth?

Accepted Answer

Venus woul

Question 5

Retrograde motion is seen when ________ due to Earth's motion.

Accepted Answer

A)  stars change their position in the sky with respect to background stars 
B)  stars rise in the west and set in the east 
C)  planets rise in the west and set in the east 
D)  planets change the direction in which they move across the night sky 
E)  planets orbit the Sun in the opposite direction 
A)  stars change their position in the sky with respect to background stars 
B)  stars rise in the west and set in the east 
C)  planets rise in the west and set in the east 
D)  planets change the direction in which they move across the night sky 
E)  planets orbit the Sun in the opposite direction

Question 6

Kepler's third law for our Solar System can be expressed mathematically as

Accepted Answer

A)  P $\infty$ A. 
B)  P2 $\infty$ A2. 
C)  P2 $\infty$ A3. 
D)  P3 $\infty$ A2. 
E)  P $\infty$ A2. 
A)  P $\infty$ A. 
B)  P2 $\infty$ A2. 
C)  P2 $\infty$ A3. 
D)  P3 $\infty$ A2. 
E)  P $\infty$ A2.

Question 7

If Neptune has a semimajor axis of 19 AU, its orbital period is

Accepted Answer

A)  45 years. 
B)  83 years. 
C)  130 years. 
D)  220 years. 
E)  380 years. 
A)  45 years. 
B)  83 years. 
C)  130 years. 
D)  220 years. 
E)  380 years.

Question 8

What acceleration would result from a 5-N force acting on a 3-kg object? (Recall that 1 N = 1 kg m/s2.)

Accepted Answer

a =F/m = 5

Question 9

Suppose an asteroid had an orbit with a semimajor axis of 4 AU.How long would it take for it to orbit once around the Sun?

Accepted Answer

A)  76 years 
B)  45 years 
C)  8 years 
D)  16 years 
E)  2 years 
A)  76 years 
B)  45 years 
C)  8 years 
D)  16 years 
E)  2 years

Question 10

Who of the following was NOT a proponent of the heliocentric model of the solar system?

Accepted Answer

A)  Galileo 
B)  Copernicus 
C)  Newton 
D)  Ptolemy 
E)  Aristarchus 
A)  Galileo 
B)  Copernicus 
C)  Newton 
D)  Ptolemy 
E)  Aristarchus

Question 11

Based on the figure below, explain why, when a superior planet is in opposition, it will be visible from Earth all night long.

Accepted Answer

Opposition means that it is opposite the

Question 12

The average distance between a planet and the Sun is given by the ________ of its elliptical orbit.

Accepted Answer

A)  radius 
B)  semiminor axis 
C)  eccentricity 
D)  semimajor axis 
E)  distance between the foci 
A)  radius 
B)  semiminor axis 
C)  eccentricity 
D)  semimajor axis 
E)  distance between the foci

Question 13

You are following a construction vehicle on the road in your car.A large object falls off the construction vehicle.Explain how this object moves while it is still in the air, neglecting air resistance.

Accepted Answer

The object's inertia will keep it moving

Question 14

If Mercury has an orbital period of about 88 days, what is its average distance from the Sun?

Accepted Answer

A)  0.2 AU 
B)  0.01 AU 
C)  0.05 AU 
D)  0.4 AU 
E)  0.7 AU 
A)  0.2 AU 
B)  0.01 AU 
C)  0.05 AU 
D)  0.4 AU 
E)  0.7 AU

Question 15

If the synodic period of Venus is observed from Earth to be 1.6 years, Venus's sidereal period is ________ years.

Accepted Answer

A)  1.9 
B)  0.45 
C)  0.28 
D)  1.6 
E)  0.62 
A)  1.9 
B)  0.45 
C)  0.28 
D)  1.6 
E)  0.62

Question 16

If Jupiter has an orbital period of 12 years, what value is closest to its average distance from the Sun?

Accepted Answer

A)  2 AU 
B)  25 AU 
C)  10 AU 
D)  5 AU 
E)  144 AU 
A)  2 AU 
B)  25 AU 
C)  10 AU 
D)  5 AU 
E)  144 AU

Question 17

When an inferior planet has reached its largest angular separation from the Sun on the sky, what is this called?

Accepted Answer

The answer of When an inferior planet has reached its...

Question 18

If the sidereal period of Jupiter is 11.9 years, what is Jupiter's synodic period as observed from Earth?

Accepted Answer

A)  2.3 years 
B)  0.84 years 
C)  0.92 years 
D)  1.09 years 
E)  1.5 years 
A)  2.3 years 
B)  0.84 years 
C)  0.92 years 
D)  1.09 years 
E)  1.5 years

Question 19

You apply a force of 10 N to a grocery cart in order to get an acceleration of 0.5 m/s2.If you apply a force of 20 N to the same grocery cart, its acceleration will be

Accepted Answer

A)  10 m/s2. 
B)  1 m/s2. 
C)  0.5 m/s2. 
D)  0.25m/s2. 
E)  20 m/s2. 
A)  10 m/s2. 
B)  1 m/s2. 
C)  0.5 m/s2. 
D)  0.25m/s2. 
E)  20 m/s2.

Question 20

Galileo observed what the geocentric astronomers viewed as imperfections.These observations helped Galileo to show that the heliocentric model was the more accurate model.Which was not an observation of Galileo's?

Accepted Answer

A)  The Moon had craters. 
B)  sunspots 
C)  the moons of Jupiter 
D)  Venus's phases 
E)  the moons of Saturn 
A)  The Moon had craters. 
B)  sunspots 
C)  the moons of Jupiter 
D)  Venus's phases 
E)  the moons of Saturn

Exam 3: Motion of Astronomical Bodies

If you traveled at a velocity of 60 mph for a five-hour trip, how far did you travel?

Explain how a rocket can accelerate in space, even though there is nothing to "push off" of.

If the synodic period of Mars is observed from Earth to be 2.1 years, what is the sidereal period of Mars?

If Venus is at inferior conjunction, what phase would we observe from Earth?

Retrograde motion is seen when ________ due to Earth's motion.

Kepler's third law for our Solar System can be expressed mathematically as

If Neptune has a semimajor axis of 19 AU, its orbital period is

What acceleration would result from a 5-N force acting on a 3-kg object? (Recall that 1 N = 1 kg m/s2.)

Suppose an asteroid had an orbit with a semimajor axis of 4 AU.How long would it take for it to orbit once around the Sun?

Who of the following was NOT a proponent of the heliocentric model of the solar system?

Based on the figure below, explain why, when a superior planet is in opposition, it will be visible from Earth all night long.

The average distance between a planet and the Sun is given by the ________ of its elliptical orbit.

You are following a construction vehicle on the road in your car.A large object falls off the construction vehicle.Explain how this object moves while it is still in the air, neglecting air resistance.

If Mercury has an orbital period of about 88 days, what is its average distance from the Sun?

If the synodic period of Venus is observed from Earth to be 1.6 years, Venus's sidereal period is ________ years.

If Jupiter has an orbital period of 12 years, what value is closest to its average distance from the Sun?

When an inferior planet has reached its largest angular separation from the Sun on the sky, what is this called?

If the sidereal period of Jupiter is 11.9 years, what is Jupiter's synodic period as observed from Earth?

You apply a force of 10 N to a grocery cart in order to get an acceleration of 0.5 m/s2.If you apply a force of 20 N to the same grocery cart, its acceleration will be

Galileo observed what the geocentric astronomers viewed as imperfections.These observations helped Galileo to show that the heliocentric model was the more accurate model.Which was not an observation of Galileo's?

Thinking Like an Astronomer

Patterns in the Skymotions of Earth and the Moon

Gravity and Orbits

Light

The Tools of the Astronomer

The Formation of Planetary Systems

The Terrestrial Planets and Earths Moon

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquidthe Giant Planets

Planetary Moons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

Our Starthe Sun

The Interstellar Medium and Star Formation

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Relativity and Black Holes

Galaxies

The Milky Waya Normal Spiral Galaxy

The Expanding Universe

Cosmology

Large-Scale Structure in the Universe

Life

Filters

What acceleration would result from a 5-N force acting on a 3-kg object? (Recall that 1 N = 1 kg m/s².)

You apply a force of 10 N to a grocery cart in order to get an acceleration of 0.5 m/s².If you apply a force of 20 N to the same grocery cart, its acceleration will be